Specifically engineered to handle muddy or sandy water, the ST20-S is powered by a 169cc Generac G-Force engine that pumps up to 158 gallons per minute. With features such as low-oil shut down, custom Easy Prime™ funnel design for quick and easy priming, and a large fuel tank with integrated fuel gauge, it’s both durable and easy to use. DURABLE 1” FRAME to withstand the harsh environment. Powerful GENERAC G-FORCE 169CC ENGINE with low-oil shut down. Large 3-gallon fuel tank with incorporated fuel gauge delivers approximately 5 HOURS RUNTIME. Onboard instructions with icons of key touch points make this pump EASY TO USE. Easy Prime™ custom funnel design with tethered priming cap for QUICK AND EASY PRIMING. COLOR-CODED SUCTION AND DISCHARGE PORTS to ensure the correct hose connections (Blue = Discharge; Green = Suction). Easily pumps up to 158 GALLONS PER MINUTE. Silicon carbide mechanical seal for LONG LIFE.